JP6184789B2 - Damping / seismic composite material and building using the same - Google Patents

Description

  The present invention relates to a vibration-damping / seismic composite member and a building using the same, and more particularly to a vibration-damping / seismic composite member used as a brace and a building using the same.

Traditionally, the seismic design of buildings keeps the main frame within the elastic range during small and medium-sized earthquakes to prevent building damage, and during large earthquakes, the main frame is allowed to be plasticized to prevent collapse, It is based on the idea of enabling continued use of the building.
In addition, by incorporating damping members with excellent plastic deformation performance into the building, a vibration damping structure that efficiently absorbs a wide range of energy from small to large earthquakes and reduces damage to buildings is It is mainly used for high-rise buildings.

In response to the recent increase in the scale of assumed earthquakes (for example, seismic intensity of 7 or more classes), simply setting a large seismic load at the time of design increases the strength of the entire main frame of the building, which is a vibration control structure. This leads to (increase in rigidity and proof stress), leading to an increase in the required amount of material and cross section.
In addition, it can be easily estimated that the design becomes uneconomical considering the probability of occurrence of earthquakes and the probability of excess. Furthermore, in the case of seismic reinforcement of existing buildings, it is considered that the arrangement of members and the economic efficiency will become a bottleneck, making it difficult to implement seismic reinforcement.

  Further, as a vibration damping member having excellent plastic deformation performance, an axial force yielding type buckling restrained brace that is a hysteretic vibration damping member using a steel material is frequently used. A buckling-restrained brace is formed from an axial force material that acts on an axial force and a stiffening tube that surrounds the axial force material in the absence of an axial force, thereby stiffening the buckling of the axial force material caused by the axial force. By suppressing the pipe, the amount of plastic deformation (absorption amount of seismic energy) of the axial force material is increased (for example, see Patent Document 1).

Japanese Patent No. 3246656 (page 3, FIG. 1)

However, the axial force yielding type buckling restrained brace disclosed in Patent Document 1 has the following problems.
In other words, by receiving repeated history within a certain allowable strain range, the seismic energy is efficiently absorbed, but generally, the greater the strain generated in the plasticized part, the lower the total energy absorption amount until the fracture occurs. In addition, if the strain exceeds the allowable range, it may be broken several times. For this reason, a direct type seismic motion to which a pulse wave is applied is momentarily subjected to a large distortion, so that the total energy absorption amount may be insufficient.

  Therefore, it is necessary to keep the inner cylinder tube large (thickening, increasing its diameter) or increasing the installation amount so as to keep the distortion generated in the plasticized part small and prevent the distortion exceeding the allowable range from occurring. As a result, the apparatus itself (buckling restraint brace including the outer tube) has become large, and a large installation space has been required. If it did so, while raising the manufacturing cost and construction cost, the freedom degree of the installation place fell.

  The present invention solves the above-mentioned problem, and suppresses the increase in size of the apparatus and suppresses the distortion generated in the plasticized portion in an installation space substantially equivalent to the conventional one, and the vibration-damping and earthquake-resistant composite member The purpose is to provide the building used.

(1) A vibration-damping and earthquake-resistant composite member according to the present invention includes an axial force member, a stiffening tube surrounding the axial force member, one end of the axial force member, and one end of the stiffening tube. A common end plate connected to each other, and a gap formed between the other end of the axial force member and the other end of the stiffening tube,
The gap is
Formed in both the extending direction and the shrinking direction of the axial force member in the axial direction of the axial force member,
When the axial force material is deformed by a predetermined deformation amount in the axial direction alone, one of the gaps disappears, and after the gap disappears, both the axial force material and the stiffening tube are axially It is further characterized by being deformed.

(2) In the above (1), a stiffening tube contact plate installed at the other end of the stiffening tube, and an axial force material end plate to which the other end of the axial force material is connected, An axial force member abutting plate connected to the axial force member end plate via an axial force member connecting portion; and a building installation means fixed to the common end plate and the axial force member abutting plate, respectively. Have
Wherein between the axial force member end plate and the stiffening tube abutment plate, and between the stiffening tube and the abutment plate and the axial force member abutment plate, the gap are formed respectively,
Wherein when the axial load is applied via the building installation for unit size varies in the gap, where the axial force member is deformed more than a predetermined amount of deformation, one of the of the gap It is characterized in that the gap disappears.

(3) In (1), a connecting rod having one end fixed to the other end of the stiffening tube, a connecting rod stopper installed at the other end of the connecting rod, and the shaft An axial force material end plate to which the other end of the force material is connected; an axial force material abutting plate connected to the axial force material end plate via an axial force material connecting portion; the common end plate; Building installation means fixed respectively to the axial force member contact plates,
Wherein each of the gap between the between the other end of the stiffening tube and the axial force member contact plate, and said axial force member abutment plate and the connecting rod stopper is formed,
Wherein when the axial load is applied via the building installation for unit size varies in the gap, where the axial force member is deformed more than a predetermined amount of deformation, one of the of the gap It is characterized in that the gap disappears.
(4) A vibration-damping and earthquake-resistant composite member according to the present invention includes an axial force member, a stiffening tube surrounding the axial force member, one end portion of the axial force member, and one end portion of the stiffening tube. A common end plate connected to each other, a stiffening tube abutting plate installed at the other end of the stiffening tube, and an axial force material end plate to which the other end of the axial force material is connected An axial force material abutting plate connected to the axial force material end plate via an axial force material connecting portion; and a building installation means fixed to the common end plate and the axial force material abutting plate, respectively. A gap is formed between the axial force member end plate and the stiffening tube contact plate, and between the stiffening tube contact plate and the axial force material contact plate, When an axial load is applied via the building installation means, the size of the gap fluctuates, and when the axial force member is deformed to a predetermined deformation amount or more, one of the gaps is Disappear The features.
(5) A vibration-damping and earthquake-resistant composite member according to the present invention includes an axial force member, a stiffening tube surrounding the axial force member, one end portion of the axial force member, and one end portion of the stiffening tube. A common end plate connected to each other, a connecting rod having one end fixed to the other end of the stiffening tube, a connecting rod stopper installed at the other end of the connecting rod, An axial force material end plate to which the other end of the axial force material is connected; an axial force material abutting plate connected to the axial force material end plate via an axial force material connecting portion; and the common end plate; Building installation means respectively fixed to the axial force material abutting plate, between the other end of the stiffening tube and the axial force material abutting plate, and the axial force material abutting A gap is formed between the plate and the connecting rod stopper, and when an axial load is applied via the building installation means, the size of the gap varies, and the axial force member When the deformed above shape amount, characterized in that one of the gap of the gap disappears.
( 6 ) Said (1)-(5) WHEREIN: It has a 2nd stiffening pipe | tube surrounding the said stiffening pipe | tube.

( 7 ) Further, the axial force member, a second stiffening tube surrounding the axial force member, a stiffening tube surrounding the second stiffening tube, one end of the axial force member, and the first A common end plate connected to one end of the two stiffening tubes, and a stiffening tube coupling plate connected to the other end of the second stiffening tube and the other end of the stiffening tube And a gap formed between the other end of the axial force member and the stiffening tube connecting plate,
When the axial force member, the stiffening tube, and the second stiffening tube are deformed in the axial direction by a predetermined deformation amount, the gap disappears, and after the gap disappears, the stiffening tube is independent. Further, it is further deformed in the axial direction.
( 8 ) In the above ( 7 ), the stiffening tube end plate fixed to one end of the stiffening tube and the other end of the axial force member are connected via an axial force member connecting tube. An axial force member contact plate, a connecting rod having one end fixed to the other end of the stiffening tube connecting plate, a connecting rod stopper installed at the other end of the connecting rod, Building installation means fixed to the stiffening tube end plate and the axial force member abutment plate, respectively,
A gap is formed between the stiffening tube connecting plate and the axial force material abutting plate and between the axial force material abutting plate and the connecting rod stopper,
When an axial load is applied via the building installation means, the size of the gap fluctuates, and when the axial force member is deformed to a predetermined deformation amount or more, one of the gaps is formed. Is characterized by disappearance.

( 9 ) Further, an axial force member, a second stiffening tube surrounded by the axial force member, a stiffening tube surrounded by the second stiffening tube, and one end of the stiffening tube A fixed stiffening tube end plate, a stiffening tube connecting plate for connecting the other end of the stiffening tube and the other end of the second stiffening tube, and one of the second stiffening tubes A common end plate connecting the end of the axial force member and one end of the axial force member, an axial force member abutting plate fixed to the other end of the axial force member, and the stiffening tube connecting plate A gap formed between the axial force member contact plate,
When the axial force member, the stiffening tube, and the second stiffening tube are deformed in the axial direction by a predetermined deformation amount, the gap disappears, and after the gap disappears, the stiffening tube is independent. Further, it is further deformed in the axial direction.
( 10 ) In the above ( 9 ), an axial force member abutting plate connected to the other end portion of the axial force member via an axial force member connecting tube, and an other end portion of the stiffening tube connecting plate A connecting rod fixed at one end, a connecting rod stopper installed at the other end of the connecting rod, and a building installed fixed to the stiffening tube end plate and the axial force member abutting plate, respectively. Means for
A gap is formed between the stiffening tube connecting plate and the axial force material abutting plate and between the axial force material abutting plate and the connecting rod stopper,
When an axial load is applied via the building installation means, the size of the gap fluctuates, and when the axial force member is deformed in the axial direction by a predetermined deformation amount, one of the gaps wherein the gap disappears.

( 11 ) In any one of (1) to ( 10 ), a buffer material is disposed in the gap.
( 12 ) Furthermore, the building according to the present invention includes a main frame formed of a plurality of columns and beams connecting the columns, and the (1) to ( 11 ) installed in the surface of the main frame. And the vibration-damping / seismic composite member according to any one of the above.

(I) The vibration-damping and earthquake-resistant composite member according to the present invention includes both the axial force member and the stiffening pipe after the axial force member is deformed in the axial direction alone and then the axial force member is deformed to a predetermined deformation amount or more. Is deformed in the axial direction.
That is, while the deformation is small, the axial force member functions as a vibration damping member, and has the same effect as a known buckling restrained brace. Further, when the deformation becomes large, both the axial force member and the stiffening tube function as a seismic member, and the stiffening tube mainly functions as a seismic brace that does not cause overall buckling. Therefore, an increase in size of the device (damping / seismic composite member) itself can be suppressed, and an excessive change in the building can be suppressed.
At this time, by adjusting the proof stress / rigidity of the stiffening pipe, it is possible to suppress excessive deformation of the building and reduce damage to the building even with an excessive earthquake load in a huge earthquake or the like. In addition, since deformation of the axial force member can be suppressed, early breakage due to excessive deformation of the axial force member can be prevented.

(Ii) Also, gaps are formed between the axial force member end plate and the stiffening tube abutting plate, and between the stiffening tube abutting plate and the axial force member abutting plate, respectively. When this occurs, the size of the gap fluctuates, and one of the gaps disappears when the gap is deformed to a predetermined deformation amount or more. That is, since the size of the formed gap changes and eventually disappears (members come into contact with each other), a deformation suppressing mechanism is formed with a simple structure. At this time, the deformation suppression mechanism is determined only by the amount of axial deformation of the axial force member without being affected by the frame on which the vibration-damping and earthquake-resistant composite member is installed.
(Iii) Further, gaps are formed between the other end of the stiffening tube and the axial force member abutting plate, and between the axial force material abutting plate and the connecting means stopper, respectively, so that the axial load is reduced. When acting, the size of the gap fluctuates and when one of the gaps is deformed beyond a predetermined deformation amount, one of the gaps disappears (members come into contact with each other), so the same effect as the above (ii) Is obtained.
(Iv) Further, since the second stiffening tube surrounding the stiffening tube is provided, buckling of the stiffening tube is suppressed, and functions as an earthquake-resistant member using both the axial force member and the stiffening tube (see (ii) above). ) Further increases.

(V) In addition, after the axial force member, the stiffening tube, and the second stiffening tube are deformed in the axial direction, the axial force member and the stiffening tube are elastically restored after the axial force member is deformed to a predetermined deformation amount or more. Then, the second stiffening tube alone is deformed in the axial direction.
That is, while the deformation is small, the axial force member, the stiffening tube, and the second stiffening tube function as a damping member. Furthermore, when the deformation becomes large, only the second stiffening tube functions as an earthquake-resistant member, and functions as an earthquake-resistant brace that does not cause overall buckling. Therefore, the same effect as the above (i) can be obtained.
(Vi) When a gap is formed between the stiffening tube connecting plate and the axial force material abutting plate and between the axial force material abutting plate and the connecting means stopper, and an axial load is applied. When the size of the gap fluctuates and deforms to a predetermined deformation amount or more, one of the gaps disappears. Therefore, since the deformation suppressing mechanism is formed with a simple structure, the same effect as the above (ii) can be obtained.

(Vii) Since the buffer material is disposed in the gap, the collision of the members forming the gap is buffered (absorbed), and the generation of impact sound is suppressed and damage due to the impact force is prevented.
(Viii) Furthermore, the building according to the present invention has a vibration-damping / seismic composite member that exhibits the effects (i) to (vii) described above, and an increase in the size of the vibration-damping / seismic composite member is suppressed. Since both the seismic function and the seismic function are exhibited, it is not necessary to expand the installation space, the degree of freedom of the installation position increases, and the building can be provided with a high degree of freedom and high reliability against earthquakes.

BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing of the side view explaining the damping-seismic composite member concerning Embodiment 1 of this invention, Comprising: (a) is 1 of Example 1, (b) is 2 of Example 1. FIG. It is sectional drawing of the side view explaining the damping-seismic composite member which concerns on Embodiment 2 of this invention, (a) is 1 of Example 2, (b) is 2 of Example 2. FIG. It is sectional drawing of the side view explaining the damping-seismic composite material which concerns on Embodiment 3 of this invention, (a) is 1 of Example 3, (b) is 2 of Example 3, (c) is Example 3-3. Sectional drawing of the side view explaining the building which concerns on Embodiment 4 of this invention typically.

[Embodiment 1]
FIG. 1 is a cross-sectional view illustrating a vibration-damping and earthquake-resistant composite member according to Embodiment 1 of the present invention, where (a) is 1 of Example 1 and (b) is 2 of Example 1. FIG. . In addition, each part is shown typically, and the present invention is not limited to the illustrated form (shape and relative size).

(1 of Example 1)
In FIG. 1A, the vibration-damping and earthquake-resistant composite member 100 includes an axial force member 10, a stiffening tube 20 surrounding the axial force member 10, one end portion 10 a of the axial force member 10, and a stiffening tube 20. The common end plate 30 to which one end portion 20a of the axial force member 10 is connected, and the axial force member end plate 40 to which the other end portion 10b of the axial force member 10 is connected.
A building installation plate 39 for installation in a building (not shown) is fixed to the common end plate 30, and a building installation hole 38 is provided through the building installation plate 39.
In addition, although the low yield point steel pipe excellent in deformation performance is used for the axial force member 10 and the carbon steel is used for the stiffening pipe 20, the present invention is not limited to this and has similar characteristics. Any material may be used. Further, the axial force member 10 may be a steel pipe or not a steel pipe (for example, a bar, a plate, an H-shaped cross section, etc.), and the stiffening pipe 20 is not limited to a steel pipe having a circular cross section. The cross section may be rectangular. The installation method with the building may also be a pin type or a bolt joint type.

Further, the axial force member end plate 40 is fixed with an axial force member connecting portion 41 having an outer diameter smaller than that of the axial force member end plate 40, and the axial force member connecting portion 41 is substantially equal to the outer diameter of the stiffening tube 20. An axial force material abutting plate 42 having the same outer diameter (the outer diameter is larger than that of the axial force material connecting portion 41) is fixed, and the axial force material abutting plate 42 is for building installation for installation in a building (not shown). A plate 49 is fixed, and a building installation hole 49 is provided through the building installation plate 49.
Further, a stiffening tube abutting plate 21 which is an inner flange (annular shape) protruding toward the inner surface is formed at the other end 20b of the stiffening tube 20. At this time, the range close to the inner periphery of the stiffening tube abutting plate 21 is located near the axial force member connecting portion 41, and there is a gap between the stiffening tube abutting plate 21 and the axial force member end plate 40. S1 is formed, a gap S2 is formed between the stiffening tube abutting plate 21 and the axial force material abutting plate 42, and an “axial force transmitting portion” to be described later is formed.

Next, the function and effect of the vibration-damping / seismic composite member 100 will be described.
When an axial force is applied to the vibration-damping / seismic composite member 100, first, the axial force member 10 is elastically deformed and eventually plastically deformed. That is, when the axial extension amount of the axial force member 10 is smaller than the gap S1 due to the tensile force, the axial force member end plate 40 does not abut against the stiffening tube abutting plate 21, so that the stiffening tube No tensile force is transmitted to 20.
When the axial force material 10 is contracted in the axial direction by a compression force smaller than the gap S2, the axial force material contact plate 42 does not contact the stiffening tube contact plate 21. No compressive force is transmitted to the tube 20. At this time, the stiffening tube 20 restrains deformation (bending deformation) other than the axial direction of the axial force member 10 (precisely, slight bending deformation occurs), so that the occurrence of buckling of the axial force member 10 is suppressed. It is done.
Therefore, the vibration-damping / seismic composite member 100 functions as a normal “buckling-restrained brace” when the deformation amount is small.

Furthermore, when the axial extension amount of the axial force member 10 becomes larger than the gap S1 due to the tensile force, the axial force member end plate 40 abuts on the stiffening tube abutment plate 21, so that the stiffening is performed. A tensile force is transmitted to the tube 20.
Further, when the amount of axial force contraction of the axial force member 10 becomes larger than the gap S2 due to the compressive force, the axial force member contact plate 42 contacts the stiffening tube contact plate 21. A compressive force is transmitted to the rigid tube 20. At this time, the stiffening tube 20 having a higher rigidity and a larger cross-sectional area than the plasticized axial force member 10 bears more axial force, so that the axial direction after contact with elastic deformation is brought about. The amount of shrinkage can be reduced.

  The stiffening tube 20 is designed to have a necessary cross section so that the axial force component 10 does not cause overall buckling with respect to an axial force exceeding an axial force that causes a deformation amount (shrinkage amount) corresponding to the gap S2. Has been.

As described above, in the vibration-damping and earthquake-resistant composite member 100, when an excessive seismic force is generated, the axial force is shared by both the axial force member 10 and the stiffening tube 20, and the shaft The amount of deformation of the axial force member 10 is reduced as compared with the case where the force is borne only by the force member 10.
Therefore, the strain generated in the axial force member 10 that is the original plasticized portion can be suppressed within the allowable strain range, and the seismic energy can be reliably absorbed.
That is, it can be said that the axial force member 10 mainly exhibits a damping function, and the axial force member 10 and the stiffening pipe 20 cooperate to mainly exert an earthquake resistance function. An increase in the size of the stiffening tube 20) can be suppressed, and the vibration-damping and earthquake-proof composite member 100 that suppresses an increase in manufacturing cost and construction cost can be obtained without increasing the installation space.

(Example 1-2)
In FIG. 1B, the vibration-damping and earthquake-resistant composite member 101 is replaced with one of the connecting rods 70, which are high-tensile steel bars, instead of the stiffening tube contact plate 21 in the vibration-damping and earthquake-resistant composite member 100. The axial force material abutting plate 42 is provided with an axial force material abutting hole 44 through which the connecting rod 70 penetrates, and a connecting rod stopper 71 is provided near the other end 70 b of the connecting rod 70. Is installed. Therefore, a gap S1 is formed between the other end 20b of the stiffening tube 20 and the axial force material abutting plate 42, and a gap S2 is formed between the axial force material abutting plate 42 and the connecting rod stopper 71. ing.
The axial force member abutting plate 42 is movable between the other end 20b of the stiffening tube 20 and the axial force member abutting plate 42 while being guided by the connecting rod 70. The vibration-damping and earthquake-resistant composite member 101 has the same effects as the vibration-damping and earthquake-resistant composite member 100.

[Embodiment 2]
FIG. 2 is a side sectional view for explaining a vibration-damping / seismic composite member according to Embodiment 2 of the present invention, where (a) is 1 in Example 2 and (b) is 2 in Example 2. . In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 1, or an equivalent part, and one part description is abbreviate | omitted.

(Example 2)
In FIG. 2A, a vibration-damping and earthquake-resistant composite member 200 is provided on the outer side of the stiffening tube 20 forming the vibration-damping and earthquake-resistant composite member 100 (Embodiment 1), and further a second stiffening made of a carbon steel pipe. A tube 60 is arranged. A buffer material 51 is installed on the axial force material end plate 40, and a buffer material 52 is installed on the axial force material contact plate 42.

Therefore, even when a sudden load such as a pulse wave is applied to the axial force member 10, the shock absorbing material 51 absorbs the collision between the axial force material end plate 40 and the stiffening tube abutting plate 21, and the shock absorbing material 52. Absorbs the collision between the axial force member contact plate 42 and the stiffening tube contact plate 21. Therefore, generation of impact sound is suppressed and damage due to impact force is prevented.
In addition, you may install the buffer materials 51 and 52 in the stiffening pipe contact board 21. FIG. The materials and types of the buffer materials 51 and 52 are not limited, and may be a known damper having a plate material of rubber or synthetic resin, a spring, or a liquid or viscous elastic body.

Further, the second stiffening tube 60 has a structure in which no axial force is transmitted. At this time, the stiffening tube 20 is necessary for restraining the overall buckling of the axial force member 10 against the axial force that causes the deformation (contraction amount) corresponding to the gap S2 of the axial force member 10. On the other hand, the second stiffening tube 60 is designed to have a cross section necessary for restraining the overall buckling of the stiffening tube 20. Therefore, the occurrence of buckling of the stiffening tube 20 is suppressed even when the axial force exceeds the axial force that causes the deformation (contraction amount) corresponding to the gap S2.
In addition, although the vibration-damping / seismic composite member 200 has both the buffer materials 51 and 52 and the second stiffening pipe 60, it may have either one.

(Example 2-2)
In FIG. 2B, the vibration-damping / seismic composite member 201 is attached to the other end 20 b of the stiffening tube 20 in place of the inner flange-shaped stiffening tube contact plate 21 in the vibration-damping / seismic composite member 200. The flange-shaped stiffening tube connecting plate 22 is fixed, the other end portion 60b of the second stiffening tube 60 is fixed to the stiffening tube connecting plate 22, and one end portion 70a of the connecting rod 70 is fixed to the stiffening tube. It is fixed to the connecting plate 22. In addition, since the other end portion 60 a of the second stiffening tube 60 is not fixed, the axial force is not transmitted to the second stiffening tube 60.
Therefore, a gap S1 is formed between the stiffening tube connecting plate 22 and the axial force material abutting plate 42, and a gap S2 is formed between the axial force material abutting plate 42 and the connecting rod stopper 71. The axial force member abutting plate 42 is movable between the stiffening tube connecting plate 22 and the axial force member abutting plate 42 while being guided by the connecting rod 70. The member 201 has substantially the same function and effect as the vibration-damping / seismic composite member 200. In addition, in accordance with the vibration-damping and earthquake-resistant composite member 200, the buffer material 51 is installed on the stiffening tube connecting plate 22, the buffer material 52 is installed on the connecting rod stopper 71, and the buffer material 51 and the buffer material are installed on the axial force material contact plate 42. The material 52 may be installed.

[Embodiment 3]
FIG. 3 is a side sectional view for explaining a vibration-damping and earthquake-proof composite member according to Embodiment 3 of the present invention, where (a) is 1 in Example 3, (b) is 2 in Example 3, ( c) is 3 of Example 3. In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 1, or an equivalent part, and one part description is abbreviate | omitted.

(1 of Example 3)
3A, the vibration-damping and earthquake-resistant composite member 300 includes an axial force member 10, a second stiffening tube 60 that surrounds the axial force member 10, and a stiffening tube 20 that surrounds the second stiffening tube 60. A common end plate 80 in which one end portion 10a of the axial force member 10 and one end portion 60a of the second stiffening tube 60 are connected, and the other end portion 10b of the axial force member 10 and the axial force member. And an axial force member connecting pipe 43 that connects the contact plate 42.

The other end 20b of the stiffening tube 20 is formed with a stiffening tube connecting plate 22 that is an inner flange (annular) protruding toward the inner surface, and the stiffening tube connecting plate 22 has a second stiffening. The other end 60b of the tube 60 is fixed.
A stiffening tube end plate 37 is fixed to one end 20a of the stiffening tube 20, and a building installation plate 39 provided with a building installation hole 38 is fixed to the stiffening tube end plate 37. Has been.

Further, an axial force material contact plate 42 is fixed to the axial force material connection tube 43, and an axial force material contact hole 44 through which the connecting rod 70 passes is provided in the axial force material contact plate 42.
The connecting rod 70 is formed of a high-strength steel rod, one end portion 70a of the connecting rod 70 is fixed to the stiffening tube connecting plate 22, and a connecting rod stopper 71 is installed near the other end portion 70b. A gap S3 is formed between the connecting plate 22 and the axial force material abutting plate 42, and a gap S4 is formed between the axial force material abutting plate 42 and the connecting rod stopper 71. That is, the axial force member abutting plate 42 is movable between the stiffening tube connecting plate 22 and the axial force member abutting plate 42 while being guided by the connecting rod 70.
The gap S5 formed between the common end plate 80 and the stiffening tube end plate 37 is sufficiently larger than the gap S3.

Next, the function and effect of the vibration-damping / seismic composite member 300 will be described. First, a case where compressive force is applied to the vibration-damping / seismic composite member 300 will be described.
When a compressive force is applied to the vibration-damping and seismic composite member 300, the axial force member 10 and the stiffening tube 20 contract in the axial direction while the second stiffening tube 60 in the axial direction in a range where the compressive axial force is relatively small. extend.
At this time, the axial force member 10, the stiffening tube 20, and the second stiffening tube 60 are folded and connected in series, and the same axial force is applied, so that the shaft has low shaft rigidity and a low yield point. Only the force material 10 is plasticized and absorbs seismic energy. That is, by designing the second stiffening tube 60 on which the tensile force acts to suppress deformation within the elastic range, the entire axial force member 10 is similar to the known “buckling stiffening brace”. It is possible to constrain buckling.

Further, when the compression axial force increases and the axial deformation (shrinkage amount) increases, the axial force material contact plate 42 contacts the stiffening tube connecting plate 22 (the gap S3 disappears), and the common end plate 80 and the stiffening tube end plate 37 are separated (the gap S5 does not disappear).
For this reason, the subsequent compression axial force is transmitted only to the stiffening tube 20 via the stiffening tube connecting plate 22. Therefore, the axial force member 10 and the second stiffening tube 60 are not further deformed while maintaining the axial force generated so far. On the other hand, the amount of deformation of the stiffening tube 20 gradually increases as the compression force increases.
At this time, the second stiffening tube 60 is (i) designed to have a cross section necessary for restraining the overall buckling of the axial force member 10 against the compression axial force that generates the amount of compressive deformation corresponding to the gap S3. (Ii) For a design axial force exceeding the compression axial force that generates the amount of compressive deformation corresponding to the gap S3, the cross section is designed to be necessary to constrain the overall buckling of the stiffening tube 20.

Next, a case where a tensile force is applied to the vibration-damping / seismic composite member 300 will be described.
When a tensile force is applied to the vibration-damping / seismic composite member 300, the axial force member 10 and the stiffening tube 20 extend in the axial direction while the second stiffening tube 60 extends in the axial direction in a range where the tensile axial force is relatively small. Shrink.
At this time, the second stiffening tube 60 is prevented from buckling by the stiffening tube 20, and only the axial force member 10 having a small axial rigidity is plasticized to absorb the seismic energy. At this time, the stiffening tube 20 and the second stiffening tube 60 are restrained from being deformed within the elastic range, similarly to the case of compression (when the compression axial force is small).

Further, when the tensile axial force increases and the axial deformation (elongation amount) increases, the axial force material contact plate 42 contacts the connecting rod stopper 71 (the gap S4 disappears). Therefore, the subsequent tensile axial force is transmitted only to the second stiffening tube 60 via the connecting rod 70.
Therefore, the axial force member 10 and the second stiffening tube 60 are not further deformed while maintaining the axial force generated so far. On the other hand, the stiffening tube 20 starts tensile deformation, and the amount of deformation gradually increases.
At this time, the stiffening tube 20 has (i) a second stiffening tube 60 against a tensile axial force (compression axial force for the second stiffening tube 60) that generates a tensile deformation amount corresponding to the gap S4. It is designed to have a cross section necessary to constrain the overall buckling.

(Example 3-2)
In FIG. 3B, a vibration-damping and earthquake-resistant composite member 301 is obtained by changing the connecting rod 70 of the vibration-damping and earthquake-resistant composite member 300 to a connecting tube 90 that is a high-strength steel pipe. That is, in the state where the connecting tube 90 surrounds the axial force member abutting plate 42, one end 90a is fixed to the stiffening tube connecting plate 22, and the connecting tube stopper 91 is provided at the other end 90b. .
At this time, a gap S3 is formed between the axial force material contact plate 42 and the axial force material contact plate 42, and a gap S4 is formed between the axial force material contact plate 42 and the connecting pipe stopper 91. Therefore, the vibration-damping / seismic composite member 301 has the same effects as the vibration-damping / earthquake composite member 300.

(Example 3-3)
In FIG. 3C, the vibration-damping and earthquake-resistant composite member 302 is obtained by reversing the arrangement of the members in the vibration-damping and earthquake-resistant composite member 300 in the inner and outer directions. The second stiffening tube 60 is disposed outside the tube 20 so as to surround it, and the axial force member 10 is disposed outside the second stiffening tube 60 so as to surround it.
Therefore, since the axial force (compressive force or tensile force) is transmitted to each member of the vibration-damping / seismic composite member 302 in the same manner as in each member of the vibration-damping / seismic composite member 300, The same effects as those of the vibration-damping / seismic composite member 300 are obtained.

(Other forms)
As described above in Embodiments 1, 2, and 3, the present invention absorbs seismic energy by the axial force member 10 and reaches the predetermined deformation amount until the predetermined deformation amount is reached. Is characterized in that the axial force is transmitted to the stiffening tube 20, and the mechanism for realizing this is not limited to the illustrated embodiment.

[Embodiment 4]
FIG. 4 is a sectional view in side view for schematically explaining a building according to Embodiment 4 of the present invention. In addition, the same code | symbol is attached | subjected to the same part as Embodiment 1-3, or the part corresponding, and one part description is abbreviate | omitted.
In FIG. 4, a building 400 has a main frame 3 formed of a plurality of pillars 1 and beams 2 that connect the pillars 1 to each other. A pair of vibration-damping / seismic composite members 100 are installed in a C-shape (inverted V-shape) in the surface of the main frame 3.
Therefore, since the vibration-damping / seismic composite member 100 has the above-described effects and suppresses an increase in size and an increase in manufacturing cost and construction cost, an increase in construction member cost and construction cost of the building 400 can be suppressed. it can. Moreover, since the vibration-damping / seismic composite member 100 only requires an installation space equivalent to the conventional one, the freedom of installation in the building 400 increases, and the risk of hindering the scenery from the outside of the building 400 and the scenery inside the building 400 decreases.

Furthermore, by configuring the main frame 3 (column 1 and beam 2) with high-strength members and appropriately setting the “horizontal force sharing ratio” of the earthquake-resistant part, even for an excessive earthquake load such as a huge earthquake, It is possible to suppress excessive deformation of the building 400 while keeping the main frame 3 within the elastic range.
In other words, since the soundness of the main frame 3 is maintained, simply by replacing the vibration-damping / seismic composite member 100 with a new one, the vibration-damping performance and earthquake-proof performance are restored to approximately the same as before the earthquake, and the building 400 continues. Can be used.

In addition, the installation form of the vibration-damping / seismic composite member 100 is not limited to the C-shape, and may be installed in the V-shape or obliquely in the surface of the main frame 3. Further, the construction surface of the main frame 3 on which the vibration-damping / seismic composite member 100 is installed is not limited to the form shown in the figure, and may be installed on all the construction surfaces or alternately in the vertical direction. May be.
Further, in place of the vibration-damping and earthquake-resistant composite member 100, any of the vibration-damping and earthquake-resistant composite members 101, 200, 201, 300, 301, and 302 may be installed.

  According to the present invention, it can be said that the axial force member 10 mainly exhibits a damping function, and the axial force member 10 and the stiffening tube 20 cooperate to mainly exert an earthquake resistance function. The seismic energy can be absorbed and the stiffening tube 20 can further absorb the seismic energy in addition to absorbing the seismic energy without excessively increasing the strain generated in the material 10. Therefore, it can be widely used as a vibration-damping and earthquake-resistant member that suppresses an increase in size, suppresses an increase in manufacturing cost and construction cost, and as a building using the same.

1 pillar 2 beam 3 main frame 10 axial force member 10a end 10b end 20 stiffening tube 20a end 20b end 21 stiffening tube contact plate 22 stiffening tube connecting plate 30 common end plate 37 stiffening tube end plate 38 Building Installation Plate 39 Building Installation Plate 40 Axial Material End Plate 41 Axial Material Connecting Portion 42 Axial Material Contact Plate 43 Axial Material Connection Tube 44 Axial Material Contact Hole 48 Building Installation Hole 49 Building Installation Plate 51 Buffer material 52 Buffer material 60 Second stiffening tube 60a End portion 60b End portion 70 Connecting rod 70a End portion 70b End portion 71 Connecting rod stopper 80 Common end plate 90 Connecting tube 90a End portion 90b End portion 91 Connecting tube stopper 100 Damping and seismic composite material (1 of Example 1)
101 Damping and seismic composite material (Example 1-2)
200 Damping and seismic composite material (Example 2)
201 Damping / seismic composite material (Example 2-2)
300 Damping / seismic composite material (Example 3-1)
301 Damping / seismic composite material (Example 3-2)
302 Damping / seismic composite material (Example 3-3)
400 Building (Embodiment 4)

Claims (12)

Axial force material,
A stiffening tube surrounding the axial force member;
A common end plate in which one end of the axial force member and one end of the stiffening tube are connected;
A gap formed between the other end of the axial force member and the other end of the stiffening tube,
The gap is
Formed in both the extending direction and the shrinking direction of the axial force member in the axial direction of the axial force member,
When the axial force material is deformed by a predetermined deformation amount in the axial direction alone, one of the gaps disappears, and after the gap disappears, both the axial force material and the stiffening tube are axially A vibration-damping and earthquake-resistant composite member characterized by further deformation. A stiffening tube abutting plate installed at the other end of the stiffening tube;
An axial force member end plate to which the other end of the axial force member is connected;
An axial force material abutting plate connected to the axial force material end plate via an axial force material connecting portion;
Building installation means respectively fixed to the common end plate and the axial force member contact plate,
Wherein between the axial force member end plate and the stiffening tube abutment plate, and between the stiffening tube and the abutment plate and the axial force member abutment plate, the gap are formed respectively,
Wherein when the axial load is applied via the building installation for unit size varies in the gap, where the axial force member is deformed more than a predetermined amount of deformation, one of the of the gap The vibration-damping and earthquake-resistant composite member according to claim 1, wherein the gap disappears. A connecting rod having one end fixed to the other end of the stiffening tube;
A connecting rod stopper installed at the other end of the connecting rod;
An axial force member end plate to which the other end of the axial force member is connected;
An axial force material abutting plate connected to the axial force material end plate via an axial force material connecting portion;
Building installation means respectively fixed to the common end plate and the axial force member contact plate,
Wherein each of the gap between the between the other end of the stiffening tube and the axial force member contact plate, and said axial force member abutment plate and the connecting rod stopper is formed,
Wherein when the axial load is applied via the building installation for unit size varies in the gap, where the axial force member is deformed more than a predetermined amount of deformation, one of the of the gap The vibration-damping and earthquake-resistant composite member according to claim 1, wherein the gap disappears.   Axial force material,
  A stiffening tube surrounding the axial force member;
  A common end plate in which one end of the axial force member and one end of the stiffening tube are connected;
  A stiffening tube abutting plate installed at the other end of the stiffening tube;
  An axial force member end plate to which the other end of the axial force member is connected;
  An axial force material abutting plate connected to the axial force material end plate via an axial force material connecting portion;
  Building installation means respectively fixed to the common end plate and the axial force member contact plate,
  A gap is formed between the axial force member end plate and the stiffening tube contact plate, and between the stiffening tube contact plate and the axial force material contact plate,
  When an axial load is applied via the building installation means, the size of the gap fluctuates, and when the axial force member is deformed to a predetermined deformation amount or more, one of the gaps is formed. Damping and earthquake-resistant composite material characterized by the disappearance of   Axial force material,
  A stiffening tube surrounding the axial force member;
  A common end plate in which one end of the axial force member and one end of the stiffening tube are connected;
  A connecting rod having one end fixed to the other end of the stiffening tube;
  A connecting rod stopper installed at the other end of the connecting rod;
  An axial force member end plate to which the other end of the axial force member is connected;
  An axial force material abutting plate connected to the axial force material end plate via an axial force material connecting portion;
  Building installation means respectively fixed to the common end plate and the axial force member contact plate,
  A gap is formed between the other end of the stiffening tube and the axial force material contact plate, and between the axial force material contact plate and the connecting rod stopper,
  When an axial load is applied via the building installation means, the size of the gap fluctuates, and when the axial force member is deformed to a predetermined deformation amount or more, one of the gaps is formed. Damping and earthquake-resistant composite material characterized by the disappearance of The vibration-damping and earthquake-resistant composite member according to any one of claims 1 to 5, further comprising a second stiffening tube that surrounds the stiffening tube. Axial force material,
A second stiffening tube surrounding the axial force member;
A stiffening tube surrounding the second stiffening tube;
A common end plate in which one end of the axial force member and one end of the second stiffening tube are connected;
A stiffening tube coupling plate in which the other end of the second stiffening tube and the other end of the stiffening tube are connected;
A gap formed between the other end of the axial force member and the stiffening tube connecting plate,
When the axial force member, the stiffening tube, and the second stiffening tube are deformed in the axial direction by a predetermined deformation amount, the gap disappears, and after the gap disappears, the stiffening tube is independent. A vibration-damping and earthquake-resistant composite member that is further deformed in the axial direction. A stiffening tube end plate fixed to one end of the stiffening tube;
An axial force member abutting plate connected to the other end of the axial force member via an axial force member connecting pipe;
A connecting rod having one end fixed to the other end of the stiffening tube connecting plate;
A connecting rod stopper installed at the other end of the connecting rod;
Building installation means fixed respectively to the stiffening tube end plate and the axial force member contact plate,
A gap is formed between the stiffening tube connecting plate and the axial force material abutting plate and between the axial force material abutting plate and the connecting rod stopper,
Wherein when the axial load is applied via the building installation for unit size varies in the gap, where the axial force member is deformed more than a predetermined amount of deformation, one of the of the gap 8. The vibration and vibration-damping composite member according to claim 7, wherein the gap disappears. Axial force material,
A second stiffening tube surrounded by the axial force member;
A stiffening tube surrounded by the second stiffening tube;
A stiffening tube end plate fixed to one end of the stiffening tube;
A stiffening tube connecting plate for connecting the other end of the stiffening tube and the other end of the second stiffening tube;
A common end plate connecting one end of the second stiffening tube and one end of the axial force member;
And axial force member abutment plate fixed to the other end of the axial force member,
A gap formed between the stiffening tube connecting plate and the axial force member abutting plate,
When the axial force member, the stiffening tube, and the second stiffening tube are deformed in the axial direction by a predetermined deformation amount, the gap disappears, and after the gap disappears, the stiffening tube is independent. A vibration-damping and earthquake-resistant composite member that is further deformed in the axial direction. An axial force member abutting plate connected to the other end of the axial force member via an axial force member connecting pipe;
A connecting rod having one end fixed to the other end of the stiffening tube connecting plate;
A connecting rod stopper installed at the other end of the connecting rod;
Building installation means fixed respectively to the stiffening tube end plate and the axial force member contact plate,
A gap is formed between the stiffening tube connecting plate and the axial force material abutting plate and between the axial force material abutting plate and the connecting rod stopper,
When an axial load is applied via the building installation means, the size of the gap fluctuates, and when the axial force member is deformed in the axial direction by a predetermined deformation amount, one of the gaps The vibration-damping and earthquake-resistant composite member according to claim 9 , wherein the gap is eliminated. Damping seismic composite member according to any one of claim 1 to 10, characterized in that cushioning member is disposed in the gap. A main frame formed from a plurality of columns and a beam connecting the columns, and the vibration-damping and earthquake-resistant composite member according to any one of claims 1 to 11 installed in the surface of the main frame , Having a building.

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